The difference is that the ball valve and butterfly valve have different cut-off methods:
The ball valve uses the ball to block the channel to realize the pipeline cut-off flow; the butterfly valve relies on the butterfly wing, and the closed pipeline will not flow when it is spread out.
Difference Two: The structure of ball valve and butterfly valve is different:
The ball valve is composed of valve body, valve core, and valve stem. Only part of the parts can be seen in the flesh; the butterfly valve is composed of valve body, valve seat, valve plate and valve stem, all accessories are exposed outside. Therefore, it can be seen that the sealing performance of the butterfly valve is not as good as that of the ball valve. Butterfly valves are also divided into soft seals and hard seals. The butterfly valve structure is relatively simple and can only be used in low pressure environments, and the maximum pressure is only 64 kg. Compared with the ball valve, the ball valve can reach a maximum of about 100 kilograms.
The working principle of the three-ball valve and the butterfly valve are different:
The ball valve has a 90-degree rotating action, just because its opening and closing part is a sphere, it can be opened or closed only by operating a 90-degree rotation, which is most suitable for a switch. But now the V-shaped ball valve can be used to adjust or control the flow. The butterfly valve is a kind of valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. It has a good function of adjusting the flow and is regarded as one of the fastest-growing valve varieties.
Post time: Nov-10-2021
